Invisible zipper head assembly structure

ABSTRACT

The present invention provides an invisible zipper head assembly structure, including a sliding member and a pull member. The sliding member includes a base portion, a first lateral wall portion, a second lateral wall portion, a base seat, and a movable retaining element. The pull member can be movably cooperated with the movable retaining element. The first lateral wall portion and the second lateral wall portion extend upward from opposite side ends of the base portion, respectively. The movable retaining element can be movably placed on the base seat.

This application claims the benefit of priority to Taiwan Patent Application No. 107102208, filed on Jan. 22, 2018 and Taiwan Patent Application No. 107138634, filed on Oct. 31, 2018. The entire content of the above identified application is incorporated herein by reference.

Some references, which may include patents, patent applications and various publications, may be cited and discussed in the description of this disclosure. The citation and/or discussion of such references is provided merely to clarify the description of the present disclosure and is not an admission that any such reference is “prior art” to the disclosure described herein. All references cited and discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference.

FIELD OF THE DISCLOSURE

The present disclosure relates to a zipper head assembly structure, and more particularly to an invisible zipper head assembly structure.

BACKGROUND OF THE DISCLOSURE

Basic fastening components of common clothing are rarely anything other than buttons or zippers. Compared to buttons, the zipper structure has better usability and stronger structural characteristics. The zipper structure includes a zipper head adopting a zipper tape as a guiding part for the reciprocating pulling of the zipper structure, so that the zipper structure has become more popular in clothing and accessories. However, zipper heads in the related art still have room for improvement.

SUMMARY OF THE DISCLOSURE

In response to the above-referenced technical inadequacies, the present disclosure provides an invisible zipper head assembly structure used to reduce the contact area between the slider and the pull member.

In one aspect, the present disclosure provides an invisible zipper head assembly structure, including a sliding member and a pull member. The sliding member includes a base portion, a first lateral wall portion, a second lateral wall portion, a base seat, and a movable retaining element. The pull member can movably cooperate with the movable retaining element. The first lateral wall portion and the second lateral wall portion respectively extend upward from opposite side ends of the base portion, and the first lateral wall portion and the second lateral wall portion mutually correspond to each other and are connected to a front end of the base portion. The base seat is disposed on the base portion and connected to a back end of the base portion, and includes a through positioning opening located between the first lateral wall portion and the second lateral wall portion. The movable retaining element is movably disposed on the base seat, and one of the ends of the movable retaining element includes a positioning portion passing through the through positioning opening. The top end of the first lateral wall portion includes a plurality of first micro convex structures, the top end of the second lateral wall portion includes a plurality of second micro convex structures, and the pull member contacts the at least one first micro convex structure or the at least one second micro convex structure to reduce a contact area of the pull member contacting one of the first lateral wall portion and the second lateral wall portion.

In one aspect, the present disclosure provides another invisible zipper head assembly structure including a sliding member and a pull member. The sliding member includes a base portion, a first lateral wall portion, a second lateral wall portion, a base seat, and a movable retaining element. The pull member can movably cooperate with the movable retaining element. The first lateral wall portion and the second lateral wall portion respectively extend upward from opposite side ends of the base portion, and the movable retaining element is movably disposed on the base seat. The top end of the first lateral wall portion includes a plurality of first micro convex structures, the top end of the second lateral wall portion includes a plurality of second micro convex structures, and the pull member contacts the at least one first micro convex structure or the at least one second micro convex structure.

In one aspect, the present disclosure provides yet another invisible zipper head assembly structure including a sliding member and a pull member. The sliding member includes a first lateral wall portion and a second lateral wall portion. The pull member can movably cooperate with the sliding member. The top end of the first lateral wall portion includes a plurality of first micro convex structures, the top end of the second lateral wall portion includes a plurality of second micro convex structures, and the pull member contacts the at least one first micro convex structure or the at least one second micro convex structure.

Therefore, one of the beneficial effects of the present disclosure is that, by the technical features of “the top end of the first lateral wall portion including a plurality of first micro convex structures, and the top end of the second lateral wall portion including a plurality of second micro convex structures” and “the pull member contacting the at least one first micro convex structure or the at least one second micro convex structures”, the contact area of the pull member contacting one of the first lateral wall portion and the second lateral wall portion can be decreased.

These and other aspects of the present disclosure will become apparent from the following description of the embodiment taken in conjunction with the following drawings and their captions, although variations and modifications therein may be affected without departing from the spirit and scope of the novel concepts of the disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure will become more fully understood from the following detailed description and accompanying drawings.

FIG. 1 is a perspective schematic view of a sliding member of an invisible zipper head assembly structure according to a first embodiment of the present disclosure.

FIG. 2 is a schematic top view of the sliding member of the invisible zipper head assembly structure according to the first embodiment of the present disclosure.

FIG. 3 is a perspective schematic view of the sliding member of a movable retaining element of the present disclosure.

FIG. 4 is a perspective schematic view of the invisible zipper head assembly structure according to the first embodiment of the present disclosure.

FIG. 5 is a vertical schematic view of the invisible zipper head assembly structure according to the first embodiment of the present disclosure.

FIG. 6 is a side schematic view of the invisible zipper head assembly structure according to the first embodiment of the present disclosure.

FIG. 7 is a vertical schematic view of the invisible zipper head assembly structure of the present disclosure when sliding on a zipper tape structure.

FIG. 8 is a perspective schematic view of the invisible zipper head assembly structure according to a second embodiment of the present disclosure.

FIG. 9 is a vertical schematic view of the invisible zipper head assembly structure in accordance with the second embodiment of the present disclosure.

FIG. 10 is a perspective schematic view of the invisible zipper head assembly structure according to a third embodiment of the present disclosure.

FIG. 11 is a vertical schematic view of the invisible zipper head assembly structure in accordance with the third embodiment of the present disclosure.

FIG. 12 is a vertical schematic view of the invisible zipper head assembly structure in accordance with a fourth embodiment of the present disclosure.

FIG. 13 is a vertical schematic view of the invisible zipper head assembly structure in accordance with a fifth embodiment of the present disclosure.

FIG. 14 is a vertical schematic view of the invisible zipper head assembly structure in accordance with a sixth embodiment of the present disclosure.

FIG. 15 is a perspective schematic view of the sliding member of the invisible zipper head assembly structure according to a seventh embodiment of the present disclosure.

FIG. 16 is a vertical schematic view of the sliding member of the invisible zipper head assembly structure according to the seventh embodiment of the present disclosure.

FIG. 17 is a vertical schematic view of the invisible zipper head assembly structure in accordance with the seventh embodiment of the present disclosure.

FIG. 18 is a side schematic view of the invisible zipper head assembly structure in accordance with the seventh embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Like numbers in the drawings indicate like components throughout the views. As used in the description herein and throughout the claims that follow, unless the context clearly dictates otherwise, the meaning of “a”, “an”, and “the” includes plural reference, and the meaning of “in” includes “in” and “on”. Titles or subtitles can be used herein for the convenience of a reader, which shall have no influence on the scope of the present disclosure.

The terms used herein generally have their ordinary meanings in the art. In the case of conflict, the present document, including any definitions given herein, will prevail. The same thing can be expressed in more than one way. Alternative language and synonyms can be used for any term(s) discussed herein, and no special significance is to be placed upon whether a term is elaborated or discussed herein. A recital of one or more synonyms does not exclude the use of other synonyms. The use of examples anywhere in this specification including examples of any terms is illustrative only, and in no way limits the scope and meaning of the present disclosure or of any exemplified term. Likewise, the present disclosure is not limited to various embodiments given herein. Numbering terms such as “first”, “second” or “third” can be used to describe various components, signals or the like, which are for distinguishing one component/signal from another one only, and are not intended to, nor should be construed to impose any substantive limitations on the components, signals or the like.

First Embodiment

Referring to FIG. 1 to FIG. 3, a first embodiment of the present disclosure provides a sliding member 1 (or a slider, a zipper) including: a base portion 10, a first lateral wall portion 11, a second lateral wall portion 12, a base seat 13 and a movable retaining element 14 (e.g., a hook member).

First, as shown in FIG. 1 to FIG. 3, the first lateral wall portion 11 and the second lateral wall portion 12 respectively extend upward from opposite side ends of the base portion 10, and the first lateral wall portion 11 and the second lateral wall portion 12 correspond to each other and are connected to a front end 101 of the base portion 10. In addition, the base seat 13 is disposed on the base portion 10 and connected to a back end 102 of the base portion 10, and the base seat 13 includes a through positioning opening 130 between the first lateral wall portion 11 and the second lateral wall portion 12. Further, the movable retaining element 14 is movably disposed on the base seat 13, and one of the ends of the movable retaining element 14 includes a positioning portion 140 that passes through the through positioning opening 130. For example, as shown in FIG. 1 and FIG. 3, the movable retaining element 14 includes a pivot hole (not labeled), and the movable retaining element 14 can be pivotally connected on the base seat 13 by the cooperation of the pivot hole and the pivot axis (not labeled).

Further, the base portion 10 includes a first symmetrical centerline, and the base seat 13 includes a second symmetrical centerline. The first symmetrical centerline passes through a geometric center point of the through positioning opening 130, and the second symmetrical centerline of the base seat 13 is horizontally offset relative to the first symmetrical centerline by a predetermined horizontal offset along a horizontal direction from the second lateral wall portion 12 toward the first lateral wall portion 11.

Further, one side of the positioning portion 140 of the movable retaining element 14 includes an offset cutting side 1400 that generates a recess in a direction opposite to the horizontal direction, so that the positioning portion 140 is offset from the second symmetric center line and close to the first symmetric center line (as shown in FIG. 3).

Referring to FIG. 4 to FIG. 7, the present disclosure provides an invisible zipper head assembly structure Z. The invisible zipper head assembly structure Z is disposed on a zipper tape structure 3 including a first zipper chain 31 and a second zipper chain 32. The invisible zipper head assembly structure Z includes a sliding member 1 and a pull member 2 (or a pull tab).

As shown in FIG. 1, FIG. 4 and FIG. 7, the sliding member 1 includes a base portion 10, a first lateral wall portion 11, a second lateral wall portion 12, a base seat 13 and a movable retaining element 14. First, the first lateral wall portion 11 and the second lateral wall portion 12 respectively extend upward from opposite side ends of the base portion 10, and the first lateral wall portion 11 and the second lateral wall portion 12 correspond to each other and are connected to a front end 101 of the base portion 10. Further, the base seat 13 is disposed on the base portion 10 and connected to a back end 102 of the base portion 10, and the base seat 13 includes a through positioning opening 130 between the first lateral wall portion 11 and the second lateral wall portion 12. Additionally, the movable retaining element 14 is movably disposed on the base seat 13, and one of the ends of the movable retaining element 14 includes a positioning portion 140 that passes through the through positioning opening 130. Furthermore, the pull member 2 can movably cooperate with the movable retaining element 14, for example, one of the end portions 20 of the pull member 2 can movably cooperate with the movable retaining element 14.

Furthermore, as shown in FIG. 4 and FIG. 7, the first zipper chain 31 includes a first zipper carrier 310 and a plurality of first zipper teeth 311 fixed on the first zipper carrier 310, and the second zipper chain 32 includes a second zipper carrier 320 and a plurality of second zipper teeth 321 fixed on the second zipper carrier 320. In addition, as shown in FIG. 7, each of the first zipper teeth 311 is retained between two adjacent second zipper teeth 321. When one of the first zipper teeth 311 is retained between the two second zipper teeth 321 to form a gap, the gap can provide for the insertion of the positioning portion 140. Therefore, the invisible zipper head assembly Z can be accurately positioned on the zipper tape structure 3 by the cooperation of the positioning portion 140 and the gap.

It should be noted that, as shown in FIG. 1, FIG. 4 and FIG. 5, the top end of the first lateral wall portion 11 has a stepped design to provide a first concave-convex structure 110 such that the first lateral wall portion 11 forms a first shoulder including a stepped design structure (the first concave-convex structure 110). In addition, the top end of the second lateral wall portion 12 has a stepped design to provide a second concave-convex structure 120 such that the second lateral wall portion 12 forms a second shoulder including a stepped design structure (the first concave-convex structure 110). Further, the pull member 2 contacts one of the first concave-convex structure 110 of the first lateral wall portion 11 and the second concave-convex structure 120 of the second lateral wall portion 12 to reduce the contact area of the pull member 2 contacting one of the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12. That is, since the pull member 2 contacts one of the first concave-convex structure 110 of the first lateral wall portion 11 and the second concave-convex structure 120 of the second lateral wall portion 12, the present disclosure can reduce the contact area between the pull member 2 and the top end of the first lateral wall portion 11 (when the pull member 2 contacts the first lateral wall portion 11), or reduce the contact area between the pull member 2 and the top end of the second lateral wall portion 12 (when the pull member 2 contacts the second lateral wall portion 12).

For example, as shown in FIG. 4 to FIG. 6, the first concave-convex structure 110 includes at least one first rib 1101 (or a first protrusion, a first convex surface) disposed at the outermost side of the top end of the first lateral wall portion 11, and the first concave-convex structure 110 includes at least one first groove 1102 (or a first recess, a first concave surface) disposed at an innermost side of a top end of the first lateral wall portion 11. A height H11 of at least one first rib 1101 relative to the base portion 10 is greater than a height H12 of the at least one first groove 1102 relative to the base portion 10. In addition, the second concave-convex structure 120 includes at least one second rib 1201 (or a second protrusion, a second convex surface) disposed at the outermost side of the top end of the second lateral wall portion 12, and the second concave-convex structure 120 includes at least one second groove 1202 (or a second recess, a second concave surface) disposed at an innermost side of a top end of the second lateral wall portion. A height H21 of the at least one second rib 1201 relative to the base portion 10 is greater than a height H22 of at least one second groove 1202 relative to base portion 10. However, the first concave-convex structure 110 and the second concave-convex structure 120 provided by the first embodiment are for exemplary purposes only, and the present disclosure is not limited thereto.

Further, as shown in FIG. 4 and FIG. 5, the pull member 2 contacts at least a portion of at least one first rib 1101 or at least a portion of a second rib 1201 (or the pull member 2 simultaneously contacts at least a portion of the first rib 1101 and at least a portion of the second rib 1201), and the pull member 2 and the at least one first groove 1102 and the at least one second groove 1202 are separated without contacting each other.

Thereby, since the pull member 2 only contacts the first rib 1101 (or the second rib 1201) and doesn't contact the first groove 1102 and the second groove 1202, the invisible zipper head assembly structure Z provided by the present disclosure can be used to effectively reduce the contact area between the pull member 2 and the top end of the first lateral wall portion 11 or to reduce the area between the pull member 2 and the top wall of the second lateral wall portion 12. It should be noted that during the paint-baking or electroplating processes of the coloring layer on the invisible zipper head assembly structure Z, since the pull member 2 either does not or does not easily adhere to the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12, the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12 do not exhibit defects relating to uneven paint.

Second Embodiment

Referring to FIG. 8 to FIG. 9, a second embodiment of the present disclosure provides an invisible zipper head assembly structure Z, including a sliding member 1 and a pull member 2. From the comparison between FIG. 8 and FIG. 4, and the comparison between FIG. 9 and FIG. 5, the greatest difference between the second embodiment of the present disclosure and the first embodiment is that, in the second embodiment, the first concave-convex structure 110 includes at least one first rib 1101 disposed at the innermost side of the top end of the first lateral wall portion 11, and the first concave-convex structure 110 including the outermost portion disposed at the top end of the first lateral wall portion 11 and at least one first groove 1102. The height H11 of the at least one first rib 1101 relative to the base portion 10 is greater than the height H12 of the at least one first groove 1102 relative to the base portion 10. In addition, the second concave-convex structure 120 includes at least one second rib 1201 disposed at the innermost side of the top end of the second lateral wall portion 12, and the second concave-convex structure 120 includes at least one second groove 1202 disposed at the outermost side of the top end of the second lateral wall portion. The height H21 of the at least one second rib 1201 relative to the base portion 10 is greater than the height H22 of the at least one second groove 1202 relative to the base portion 10. However, the first concave-convex structure 110 and the second concave-convex structure 120 provided by the second embodiment are for exemplary purposes only, and the present disclosure is not limited herein.

Further, as shown in FIG. 8 and FIG. 9, the pull member 2 contacts at least a portion of the at least one first rib 1101 or at least a portion of the at least one second rib 1201 (or the pull member 2 simultaneously contacts at least a portion of the first rib 1101 and at least a portion of the second rib 1201), and the pull member 2 and the at least one first groove 1102 and the at least one second groove 1202 are separated without contacting each other.

Thereby, since the pull member 2 only contacts the first rib 1101 (or the second rib 1201) without contacting the first groove 1102 and the second groove 1202, the invisible zipper head assembly structure Z provided by the present disclosure can be used to effectively reduce the contact area between the pull member 2 and the top end of the first lateral wall portion 11 or to reduce the area between the pull member 2 and the top end of the second lateral wall portion 11. It should be noted that during the paint-baking or electroplating processes of the coloring layer on the invisible zipper head assembly structure Z, since the pull member 2 either does not or does not easily adhere to the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12, the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12 do not generate defects in uneven paint.

Third Embodiment

Referring to FIG. 10 and FIG. 11, a third embodiment of the present disclosure provides an invisible zipper head assembly structure Z including a sliding member 1 and a pull member 2. From the comparison of FIG. 10 with FIG. 4, and the comparison of FIG. 11 with FIG. 5, the greatest difference between the third embodiment of the present disclosure and the first embodiment is that in the third embodiment, the first concave-convex structure 110 includes at least two first grooves 1102 disposed on a top end of the first lateral wall portion 11 and at least one first rib 1101 located between the at least two first grooves 1102, and a height H11 of one of the at least two first ribs 1101 relative to the base portion 10 is greater than a height H12 of the at least one first groove 1102 relative to the base portion 10. In addition, the second concave-convex structure 120 includes at least two second grooves 1202 disposed on a top end of the second lateral wall portion 12 and at least one second rib 1201 disposed between the at least two second grooves 1202, and a height H21 of one of the at least two second ribs 1201 relative to the base portion 10 is greater than a height H22 of the at least one second groove 1202 relative to the base portion 10. However, the first concave-convex structure 110 and the second concave-convex structure 120 provided by the third embodiment are for exemplary purposes only, and the present disclosure is not limited herein.

Furthermore, as shown in FIG. 10 and FIG. 11, the pull member 2 contacts at least a portion of at least one first rib 1101 or at least a portion of at least one second rib 1201 (or the pull member 2 simultaneously contacts at least a portion of the first rib 1101 and at least a portion of the second rib 1201), and the pull member 2 and the at least one first groove 1102 and the at least one second groove 1202 are separated without contacting each other.

Thereby, since the pull member 2 only contacts the first rib 1101 (or the second rib 1201) and does not contact the first groove 1102 and the second groove 1202, the invisible zipper head assembly structure Z provided by the present disclosure can be used to effectively reduce the contact area between the pull member 2 and the top end of the first lateral wall 11 or to reduce the contact area between the pull member 2 and the top end of the second lateral wall portion 12. It should be noted that during the paint-baking or electroplating processes of the coloring layer on the invisible zipper head assembly structure Z, since the pull member 2 either does not or does not easily adhere to the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12, the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12 do not generate defects in uneven paint.

Fourth Embodiment

Referring to FIG. 12, a fourth embodiment of the present disclosure provides an invisible zipper head assembly structure Z, which includes a sliding member 1 and a pull member 2. As can be seen from a comparison between FIG. 12 and FIG. 5, the greatest difference between the fourth embodiment of the present disclosure and the first embodiment is that, in the fourth embodiment, the top end of the first lateral wall portion 11 includes a plurality of first micro convex structures 111, and the top end of the second lateral wall portion 12 includes a plurality of second micro convex structures 121. The pull member 2 contacts at least one first micro convex structure 111 or at least one second micro convex structure 121 (or the pull member 2 contacts at least one first micro convex structure 111 and at least one second micro convex structure 121) to reduce the contact area of the pull member 2 contacting with one of the first lateral wall portion 11 and the second lateral wall portions 12.

Thereby, during the paint-baking or electroplating processes or plating of the coloring layer on the invisible zipper head assembly structure Z, owing to the use of the first micro-convex structure 111 or the second micro-convex structure 121, the pull member 2 either does not or does not easily adhere to the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12, so that the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12 do not generate defects in uneven paint.

Fifth Embodiment

Referring to FIG. 13, a fifth embodiment of the present disclosure provides an invisible zipper head assembly structure Z including a sliding member 1 and a pull member 2. As can be seen from a comparison between FIG. 13 and FIG. 9, the greatest difference between the fifth embodiment of the present disclosure and the second embodiment is that, in the fifth embodiment, the top end of the first lateral wall portion 11 includes a plurality of first micro convex structures 111, the top end of the second lateral wall portion 12 includes a plurality of second micro convex structures 121, and the pull member 2 contacts at least one first micro convex structure 111 or at least one second micro convex structure 121 (or the pull member 2 contacts at least one first micro convex structure 111 and at least one second micro convex structure 121), to reduce the contact area of the pull member 2 contacting one of the first lateral wall portion 11 and the second lateral wall portion 12.

Thereby, during the paint-baking or electroplating processes of the coloring layer on the invisible zipper head assembly structure Z, owing to the use of the first micro-convex structure 111 or the second micro-convex structure 121, the pull member 2 either does not or does not easily adhere to the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12, so that the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12 do not generate defects in uneven paint.

Sixth Embodiment

Referring to FIG. 14, a sixth embodiment of the present disclosure provides an invisible zipper head assembly structure Z, which includes a sliding member 1 and a pull member 2. As can be seen from a comparison between FIG. 14 and FIG. 11, the greatest difference between the sixth embodiment of the present disclosure and the third embodiment is that in the sixth embodiment, the top end of the first lateral wall portion 11 includes a plurality of first micro convex structures 111, the top end of the second lateral wall portion 12 includes a plurality of second micro convex structures 121, and the pull member 2 contacts at least one first micro convex structure 111 or at least one second micro convex structure 121 (or the pull member 2 contacts at least one first micro convex structure 111 and at least one second micro convex structure 121), to reduce the contact area of the pull member 2 contacting one of the first lateral wall portion 11 and the second lateral wall portion 12.

Thereby, during the paint-baking or electroplating processes of the coloring layer on the invisible zipper head assembly structure Z, owing to the use of the first micro convex structure 111 or the second micro convex structure 121, the pull member 2 either does not or does not easily adhere to the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12, so that the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12 do not generate defects in uneven paint.

Seventh Embodiment

Referring to FIG. 15 to FIG. 18, a seventh embodiment of the present disclosure provides an invisible zipper head assembly structure Z, which includes a sliding member 1 and a pull member 2. From a comparison between FIG. 15 to FIG. 18, and FIGS. 1, 2, 5, 6, the greatest difference between the seventh embodiment of the present disclosure and the first embodiment is that in the seventh embodiment, the top end of the first lateral wall portion 11 is a flat surface, and a plurality of first micro convex structures 111 are included thereon. The top end of the second lateral wall portion 12 is a flat surface, and a plurality of second micro convex structures 121 are provided thereon. When the pull member 2 contacts at least one first micro convex structure 111 or at least one second micro convex structure 121 (or the pull member 2 contacts at least one first micro convex structure 111 and at least one second micro convex structure 121), owing to the use of the first micro convex structure 111 or the second micro convex structure 121, the contact area of the pull member 2 contacting one of the first lateral wall portion 11 and the second lateral wall portion 12 can be reduced.

Thereby, during the paint-baking or electroplating processes of the coloring layer on the invisible zipper head assembly structure Z, owing to the use of the first micro convex structure 111 or the second micro convex structure 121, the pull member 2 either does not or does easily adhere to the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12, so that the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12 do not generate defects in uneven paint.

In conclusion, one of the of the beneficial effects of the present disclosure is that the invisible zipper head assembly structure Z provided by the present disclosure can adopt the technical features of “the top end of the first lateral wall portion 11 including a plurality of first micro convex structures 111, and the top end of the second lateral wall portion 12 including a plurality of second micro convex structures 121” and “the pull member 2 contacting at least one first micro convex structure 111 or at least one second micro convex structure 121”, to reduce the contact area of the pull member 2 contacting one of the first lateral wall portion 11 and the second lateral wall portion 12.

It should be noted that the outer surfaces of the first micro convex structure 111 and the second micro convex structure 121 may be arced or curved, but the present disclosure is not limited thereto.

Thereby, since the pull member 2 only contacts the first micro convex structure 111 (or the second micro convex structure 121), the invisible zipper head assembly structure Z provided by the present disclosure can be used to effectively reduce the contact area between the pull member 2 and the top end of the first lateral wall portion 11 or the contact area between the pull member 2 and the top end of the second lateral wall portion 12. It should be noted that during the paint-baking or electroplating processes of the coloring layer on the invisible zipper head assembly structure Z, since the pull member 2 either does not or does not easily adhere to the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12, the top end of the first lateral wall portion 11 and the top end of the second lateral wall portion 12 do not generate defects in uneven paint.

The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching.

The embodiments were chosen and described in order to explain the principles of the disclosure and their practical application so as to enable others skilled in the art to utilize the disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present disclosure pertains without departing from its spirit and scope. 

What is claimed is:
 1. An invisible zipper head assembly structure, comprising: a sliding member including a base portion, a first lateral wall portion, a second lateral wall portion a base seat and a movable retaining element; and a pull member movably cooperating with the movable retaining element; wherein the first lateral wall portion and the second lateral wall portion respectively extend upward from opposite side ends of the base portion, mutually correspond to each other, and are connected to a front end of the base portion disposed on the base portion and connected to a back end of the base portion, and wherein the base seat includes a through positioning opening located between the first lateral wall portion and the second lateral wall portion, the movable retaining element is movably disposed on the base seat, and one end of the movable retaining element includes a positioning portion passing through the through positioning opening; wherein the top end of the first lateral wall portion includes a plurality of first micro convex structures, the top end of the second lateral wall portion includes a plurality of second micro convex structures, and the pull member contacts the at least one first micro convex structure or the at least one second micro convex structure to reduce a contact area of the pull member contacting one of the first lateral wall portion and the second lateral wall portion.
 2. The invisible zipper head assembly structure according to claim 1, wherein the top end of the first lateral wall portion includes a first concave-convex structure, and the top end of the second lateral wall portion includes a second concave-convex structure, the plurality of first micro convex structures are disposed on the first concave convex structure and the plurality of the second micro convex structures are disposed on the second concave convex structure.
 3. The invisible zipper head assembly structure according to claim 2, wherein the first concave-convex structure includes at least one first rib disposed at an innermost side of the top end of the first lateral wall portion, the plurality of first micro convex structures are disposed on at least one first rib, and the first concave-convex structure includes at least one first groove disposed at an outermost side of the top end of the first lateral wall portion, and a height of at least one first rib relative to the base portion is greater than the at least one first groove a height relative to the base portion; wherein the second concave-convex structure includes at least one second rib disposed at an innermost side of the top end of the second lateral wall portion, the plurality of second micro convex structures are disposed on the at least one second rib, the second concave-convex structure includes at least one second groove disposed at an outermost side of the top end of the second lateral wall portion, and a height of the at least one second rib relative to the base portion is greater than the height of the at least one second groove relative to the base portion; wherein the pull member and both of the at least one first groove and the at least one second groove are separated without contacting each other.
 4. The invisible zipper head assembly structure according to claim 2, wherein the first concave-convex structure includes at least one first rib disposed at an outermost side of the top end of the first lateral wall portion, the plurality of first micro convex structures are disposed on the at least one first rib, the first concave-convex structure includes at least one first groove disposed at an innermost side of the top end of the first lateral wall portion, and a height of the at least one the first rib relative to the base portion is greater than the height of the at the least one first groove relative to the base portion; wherein the second concave-convex structure includes at least one second rib disposed at an outermost side of the top end of the second side block, the plurality of second micro convex structures are disposed in the at least one second concave-convex structure including at least one second groove disposed at an innermost side of the top end of the second side block, and a height of the at least one second rib relative to the base portion is greater than a height of the at least one second groove relative to the base portion; wherein the pull member and both of at least one first groove and the at least one second groove are separated without contacting each other.
 5. The invisible zipper head assembly structure according to claim 2, wherein the first concave-convex structure includes at least two first grooves disposed on the top end of the first lateral wall portion and at least one first rib located between at least two of the first grooves, the plurality of a first micro convex structure is disposed on the at least one first rib, and a height of one of the at least two of the first ribs relative to the base portion is greater than a height of at least one of the first grooves relative to the base portion; wherein the second concave-convex structure includes at least two second grooves disposed on the top end of the second lateral wall portion and at least one second rib located between at least two of the second grooves, the plurality of the second micro convex structures is disposed on the at least one second rib, and a height of one of the at least two of the second ribs relative to the base portion is greater than a height of the at least one second groove relative to the base portion; wherein the pull member and both of the first groove and the second groove are separated from each other without contacting each other.
 6. An invisible zipper head assembly structure, comprising: a sliding member including a sliding member, a base portion, a first lateral wall portion, a second lateral wall portion, a base seat, and a movable retaining element; and a pull member movably cooperating with the movable retaining element; wherein the first lateral wall portion and the second lateral wall portion respectively extend upward from opposite side ends of the base portion, and the movable retaining element is movably disposed on the base seat; wherein the top end of the first lateral wall portion includes a plurality of first micro convex structures, the top end of the second lateral wall portion includes a plurality of second micro convex structures, and the pull member contacts the at least one first micro convex structure or the at least one second micro convex structure to reduce contact area of the pull member contacting one of the first lateral wall portion and the second lateral wall portion.
 7. The invisible zipper head assembly structure according to claim 6, wherein the top end of the first lateral wall portion includes a first concave-convex structure, and the top end of the second lateral wall portion includes a second concave-convex structure; wherein the plurality of first micro convex structures are disposed on the first concave-convex structure, and a plurality of the second micro convex structures are disposed on the second concave-convex structure.
 8. An invisible zipper head assembly structure, comprising: a sliding member including a first lateral wall portion, and a second lateral wall portion; and a pull member movably cooperating with the movable retaining element; wherein the top end of the first lateral wall portion includes a plurality of first micro convex structures, the top end of the second lateral wall portion includes a plurality of second micro convex structures, and the pull member contacts the at least one first micro convex structure or the at least one second micro convex structure to reduce a contact area of the pull member contacting one of the first lateral wall portion and the second lateral wall portion.
 9. The invisible zipper head assembly structure according to claim 8, wherein the top end of the first lateral wall portion includes a first concave-convex structure, and the top end of the second lateral wall portion includes a second concave-convex structure; wherein the plurality of first micro convex structures are disposed on the first concave-convex structure and the plurality of the second micro convex structures are disposed on the second concave-convex structure.
 10. The invisible zipper head assembly structure according to claim 9, wherein the first concave-convex structure includes at least one first rib disposed at the top end of the first lateral wall portion, the plurality of first micro convex structures are disposed on the at least one first rib, and the first concave-convex structure includes at least one first groove disposed at the top end of the first lateral wall portion; wherein the second concave-convex structure includes at least one second rib disposed at the top end of the second lateral wall portion, and the second micro convex structure includes at least one second rib disposed on the top end of the second lateral wall portion; wherein the pull member and both of the at least one first groove and the at least one second groove are separated from each other without contacting each other. 